backpack

You can indeed store ice in a backpack cooler. However, in order to do so, you have to take care of a few things. First, make sure that you put ice in when the backpack is perfectly chilled. Also, always keep ice on the top of foods in the cooler. You can also pack the ice in sealed boxes or plastic packs to sustain it longer. 

JanSport Backpacks can last for quite a long time. According to a review on Reddit, the JanSport backpack is good to use for as long as 8 years. It is not uncommon for JanSport backpacks to last more than a decade – even as long as 17-18 years